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Science Experiments

Experiments often conducted by students to test different scientific theories and hypotheses

11,111 Questions

What is a stearin engine?

A stearin engine is a simple machine that uses its wax to create power ( or other output of mechanical energy). I see you have found those IYPT questions aswell!!!

Is that true if you put your head upside down you'll get smarter?

its actually not about you get smart or not and im not really sure about that. what im sure about is that if you put your head up side down, the blood is going to change it dircation which is good for the brain as well as all the head. So the summery of that is if you put your head up side down the blood going to go to the other part of your head which is the uper part. The proof for that is when you put you head up side down for 2mint and return it back you ging to relase there is some thing comeing down inside your head which is the blood that went up and come back and these is really naturle...

hope its going to helpe :)

How much salt will it take to make an egg float in water?

to make an egg lout it takes at least five tablespoons of salt

It depends on what type of salt you use to make the egg float. it would be a fun science fair project for elementary to middle school. my son did this and he had a lot of fun. i used walmart brand salt and it works best

A what is an educated guess?

An educated guess is a theory or hypothesis. Not accurate, based only on the information available.

How do you make a bulb light with a with a fruit?

First, get a zinc electrode and a copper electrode. You can use a zinc coated nail and a penny. Put both of them into the fruit. You might need lots of fruit. Attach them together (in series), copper to zinc, and vice versa. The electrodes of the same fruit can't be wired together. Attach the free ends of the wires to the light, and it should light up!

How do scientist collect data?

Scientific investigation is based on observations. Observations refer to any information we collect about the

physical universe using our senses (sight, sound, smell, taste, and touch.) The factors or conditions being

observed are called random variables (or experimental variables) because our observations of them can vary

from one trial to the next. A random variable can be either discrete or continuous

What is the Greek word for wind?

The Greek word for wind is "anemos."

The word comes from the Greek wind gods, the Anemoi.

What does the word atomos mean?

"Atomos" is a Greek word meaning "uncuttable" or "indivisible." It was used by the ancient Greeks to describe the smallest possible unit of matter that could not be divided further.

How can you make something look moldy?

Put weird looking meat in a sandwich so it looks more gross. Also, Mix blue, purple and green food coloring and drop it on.

And a apple, use a brown marker to make bruises. Push down hard so it will be soft and brown.

What is hydro Wind and solar?

Basically the words Hydro, Wind, Solar Refer to three different sources of Renewable Energy which produce energy from different sources like Water, Air, Sun's heat

How do you write a conclusion for the science fair?

You write your ending result in the form it has to be written (paragraph, bulletin, ect.)

What is a controlled variable in experimental psychology?

A controlled variable is the thing that is kept consistent in between trials of doing an experiment. e.g: time is kept the same or kept consistent...

Is it possible to conduct a scientific experiment without the control variable?

you can conduct the experiment but it will not prove anything because you will not have anything to compare it to. For example, if you soak a potato in salt water and it grows in size, how would you know if it was the water or the salt that made it grow? You would have to soak a potato in plain water and one in salt water to see what happens.

How does fruit make a light bulb work?

The citric acid inside in a fruit could make it work. Fruits that is part of the citrus family has a contains a citric acid. For example a lemon, it could make a light bulb work. :)

What is a dependent variable in an experiment?

A dependant variable in an experiment is the portion of the experiment, or "y" variable that is subjected to change as a result of the various forms of the independent variable, or "x" variable.

Why do airplanes fly at a specific altitude?

FAA sets the rules.

They're designed to reduce collisions.

East flies at odd-000 feet

and West flies at even-000 feet up to 29,000, then they alternate every 2,000 feet. With better radar, better computers, and onboard collision avoidance equipment, controllers are able to reduce the vertical separation and accommodate more aircraft They fly at a specific altitude because the airlines save money on fuel if they fly between 33-42,000 feet. The air is thinner here and the plane uses less fuel to fly from one distance to another.

What is science skills?

The Science skill category centers on research, but it has a few tie-ins with other disciplines as well.

There are significant stakes involved in research, so the skills that enable research projects are largely prohibited to trial accounts.

Research aside, science skills are involved in advanced mining and processing techniques, advanced survey abilities, and in the use ofjump clones.

What is an independent variable in an experiment?

It's what you change to do your experiment. Say your doing an experiment like my friend Kristen Maxine Rogers is doing: Does air temperature affect how long soap bubbles last, her independent variable would be the different temperatures.

What does responding variable mean?

A responding variable is a value of measure, that came from the manipulated and controlled variables.

What are the basic processes in science?

If you are talking about the Scientific Method than I hope this will answer your question.

  1. Ask a question
  2. Do background research
  3. Construct a hypothesis
  4. Test your hypothesis by doing an experiment
  5. Analyze your data and draw a conclusion
  6. Communicate your results

It is important when doing an experiment you pick one variable to modify over the course of the experiment and keep all other variables the same. For example if you want to see how light affects a pea plant, change the amount of light it receives but not the amount of water.
The basic processes of science are observation and analysis, publication and review, invention and experimentation, and the acceptance of Nobel prizes.

What are scientific attitudes?


First off, the question should be "What ARE scientific attitudes?"

A scientific attitude starts with the goal of objectivity, personal detachment, reliance on measured evidence, following some sort of coherent process, recording and documenting observations and results, references to previously published literature and the work of others, and publishing conclusions for "peer review" by other scientists with qualifications in the specific area of inquiry. Science is the constant acceptance of being incorrect or seeing things in probability of being accurate and letting the figures and processes used speak for themselves as evidence of accuracy. No reliable scientist would say that something is a fact or proven (that is for math people) but would speak in terms of probability and what the observations and measured data indicate or suggest.